Criterion | n | % |
---|---|---|
*In all, 64 hospitals listed which diagnostic criteria they used to define minor head injury. | ||
†Vertigo, nausea, vomiting, headache, confusion. | ||
Loss of consciousness | 58 | 82 |
Post-traumatic amnesia | 30 | 42 |
Impaired level of consciousness | 5 | 7 |
Absence of focal neurological deficit | 6 | 8 |
Other signs and symptoms†| 29 | 41 |
No definition | 8 | 11 |